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Simplify proc_macro_srv tests

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This commit is contained in:
Jonas Schievink 2021-05-31 17:32:56 +02:00
parent 70e347332d
commit cfcadcb295
6 changed files with 119 additions and 244 deletions
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45
crates/proc_macro_srv/src/tests/utils.rs
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@ -2,9 +2,9 @@
use crate::dylib;
use crate::ProcMacroSrv;
use expect_test::Expect;
use proc_macro_api::ListMacrosTask;
use std::str::FromStr;
use test_utils::assert_eq_text;
pub mod fixtures {
use cargo_metadata::Message;
@ -12,9 +12,11 @@ pub mod fixtures {
use std::process::Command;
// Use current project metadata to get the proc-macro dylib path
pub fn dylib_path(crate_name: &str, version: &str) -> std::path::PathBuf {
pub fn proc_macro_test_dylib_path() -> std::path::PathBuf {
let name = "proc_macro_test";
let version = "0.0.0";
let command = Command::new(toolchain::cargo())
.args(&["check", "--tests", "--message-format", "json"])
.args(&["build", "-p", name, "--message-format", "json"])
.output()
.unwrap()
.stdout;
@ -23,7 +25,7 @@ pub mod fixtures {
match message.unwrap() {
Message::CompilerArtifact(artifact) => {
if artifact.target.kind.contains(&"proc-macro".to_string()) {
let repr = format!("{} {}", crate_name, version);
let repr = format!("{} {}", name, version);
if artifact.package_id.repr.starts_with(&repr) {
return PathBuf::from(&artifact.filenames[0]);
}
@ -33,7 +35,7 @@ pub mod fixtures {
}
}
panic!("No proc-macro dylib for {} found!", crate_name);
panic!("No proc-macro dylib for {} found!", name);
}
}
@ -41,23 +43,26 @@ fn parse_string(code: &str) -> Option<crate::rustc_server::TokenStream> {
Some(crate::rustc_server::TokenStream::from_str(code).unwrap())
}
pub fn assert_expand(
crate_name: &str,
macro_name: &str,
version: &str,
ra_fixture: &str,
expect: &str,
) {
let path = fixtures::dylib_path(crate_name, version);
let expander = dylib::Expander::new(&path).unwrap();
let fixture = parse_string(ra_fixture).unwrap();
let res = expander.expand(macro_name, &fixture.into_subtree(), None).unwrap();
assert_eq_text!(&expect.trim(), &format!("{:?}", res));
pub fn assert_expand(macro_name: &str, ra_fixture: &str, expect: Expect) {
assert_expand_impl(macro_name, ra_fixture, None, expect);
}
pub fn list(crate_name: &str, version: &str) -> Vec<String> {
let path = fixtures::dylib_path(crate_name, version);
pub fn assert_expand_attr(macro_name: &str, ra_fixture: &str, attr_args: &str, expect: Expect) {
assert_expand_impl(macro_name, ra_fixture, Some(attr_args), expect);
}
fn assert_expand_impl(macro_name: &str, input: &str, attr: Option<&str>, expect: Expect) {
let path = fixtures::proc_macro_test_dylib_path();
let expander = dylib::Expander::new(&path).unwrap();
let fixture = parse_string(input).unwrap();
let attr = attr.map(|attr| parse_string(attr).unwrap().into_subtree());
let res = expander.expand(macro_name, &fixture.into_subtree(), attr.as_ref()).unwrap();
expect.assert_eq(&format!("{:?}", res));
}
pub fn list() -> Vec<String> {
let path = fixtures::proc_macro_test_dylib_path();
let task = ListMacrosTask { lib: path };
let mut srv = ProcMacroSrv::default();
let res = srv.list_macros(&task).unwrap();